Mechanical device



Aug. 7, 1928. 1,679,627

H. RABlNowlTz IECHANICAL DEVICE Filed Aug. 31, 1927 Patented Aug. '7, 1928.v

imlrsnsrMl-zsv PATENT oFFICE.

HENRY RABINOWITZ, or BROOKLYN, NEW YORIQASSIGNOR rro BERTHA RABINOWITZ,

vor* BROOKLYN, NEW YORK. l

" MECHANICAL DEVICE.

Application filed August 31, 1927. Serial No.' 216,569.

My invention relates to improvements in a mechanism, which may be used either as a toy for children or as an embellishment for automobiles, and it consists in .the novel 5 features which are hereinafter described:

One of the objects of my improvement is to provide a perfected mechanicaldevice to be operated by the atmosphere either as a headwind when the said device is in motion H, or by an absolute wind when said device is stationary. 'l

Anothery object of my improvement isf-to have said device embody a pair of wings and a windmotor,operatively connected thereto. p5 A further object of my improvement isto have my said mechanical device simple, durable and inexpensive.

@ther objects and advantages will hereinafter apear.

I attain these objects by the device, one

form of Which'is illustiated inthe accom-z panying drawings or by any obvious modi? fication of the same.

In the drawings Fig. 1 is a front elevation of my mechanical'device.

Fig. 2 is a fragmentary detail side View in elevation of one of the eccentrics of the device, which are hereinafter more fullyfdescribed.

Fig. 3 is a view on. a small scale of the helicoid wind motor, which is hereinafter described, in a plane parallel to the shaft.

11, 12, 13 and 14 are the sails or vanes of one form of a windmotor, `which is shown as secured to a shaft 15.

A worm 16 may be secured to or made in one with said shaft 15, and is placed in mesh with a worm gear 17, which may be secured to a spindle 18; the latter` is revolvably mounted in suitable bearings 19 on a'bracket 20, which has also embodied therein a bearing 21 for said shaft 15.

The bearings 19 may said geary 17, if desired.

An extension 22 at the lower end of said bracket 20 terminates in a vertical handle or post 23, whereby said bracket 20.may be suported in position.

Other means forsupporting said bracket 2O may be provided, if desired;

Eccentries 24 are secured to said spindle 18, and are encompassed by straps 25, which are shown as formed each of two parts, secured to each other at their lower ends by screws or bolts 26, and have thereon be placed closev to lugs or flanges27 and 28 as shown in Fig. 2. Said lugs 27k are spaced a distance apart, to receive therebetween the lower ends of connecting rods 29, which may be pivotally connected thereto by means of pins-30.

The upper ends of said rods 29 are pivotallyy connected byl means of pins ,31, to counterbalances 32 of a pair of wings 33, whichlare pivotally mounted on said bracket 20 by means of pins 34.

ySaid counter-balances 32 are shown as made integral with said Wings 33,y and are formed cup-shaped or hollow to receive therein a filling of amet'al 35, which mayy be heavier than the material of the main 7 body of said balances 32 and wings33.

The said counter-balances 32 are designed to facilitate the raising of the Wings 33 by said connecting rods 29 by making the moments of gravity of said counter-balances 32 equal to the moments of gravity of said wings 33.

It is evident that Athe action of the wind or headwind on said motor 11-14 will cause the latter to revolve when said motor vis moved along as when my mechanical device is attached to the front part of an automobile yby means of said post 23, or when held against the Wind.

The motion of sald motor 1114 is then transmitted to said wings 33 by means of said worm 16, gear 17, eccentrics 24, and connecting rods 29, whereby an oscillating motion will be imparted to said wings 33 at a yelocity, which will be lower than that of said motor 11-14, whereby the oscillations or flapping of said wings 33 may be visible to the eye of an observer, producing the resemblance of apbird in flight.

The motor 11-14 may be helicoid in form, as shown in Figs. 1 and 3, and, when revolving, will produce the illusion of the head and the front part of the body of a bird.

The wind motor 11-14 may also'have any other' shape, if desired, and may be posi# tioned in any other partof my mechanical device than at thev front thereof.

The eccentrics 24 and straps 25 may also be replaced by suitable cranks, if desired.

Many yother changes may be made in the details of my mechanical device Without departing from the main scope of my invention, and parts of my invention may be used without other parts.

I do not, therefore, restrict myself to the details as shown in the drawings; but I intend to include also all mechanical equivalents and obvious modifications of the same Within the scope of my invention.

l claim as my invention and desire to secure by Letters Patent:

l. ln a mechanical device the combination of a bracket, a pair of evenly counterbalanccd wings, pivotally mounted thereon, a means for imparting a visible flapping motion to said Wings, a Wind motor revolvably mounted on said bracket, to acutate said imparting means, and a means for reducing the velocity oi said imparting means from said motor, thereby rendering the ilapping of said wings visible.

Q. ln a mechanical device the combination of a bracket, a pair ot evenly counterbalanced Wings, pivotally mounted thereon, a Worm gear, operatively connected to said Wings, to impart a visible flapping motion thereto, a spindle, secured to said gear and revolvably mounted on said bracket, a Worm in mesh with said gear, a Shaft, secured to said Worm and revolvably mounted on said bracket, and a Windmotor, mounted on said shaft, to actuate said Worm and gear, thereby operating said Wings.

3. In a mechanical device the combinationV of a pair oi' Wings, a bracket, for pivotally mounting said Wings thereon, a hollovv eX- tension on each of said Wings on the opposite side of its pivot, said extension enclosing a definite Weight of material whereby said Wings are evenly balanced, a means for imparting a visible flapping motion to said Wings and a Windmotor, revolvably'mounted on said bracket, to actuate said imparting means.

4. In a mechanical device awindmotor in the form of a helicoid, a pair oil' Wings and a means for transmitting a visible flapping motion from said motor to said Wings at a reduced velocity, the shape of said motor, When revolving, to produce the illusion ot kthe head and the front. part of the body oia a bird in flight. Y

HENRY RABINOVITZ. 

